Improved tuyeee



H'IRAM DEAN, 0F CLYDE, O HI O.-

Lenm raam' No. 66,470, mamy 9, 1867.

IMPROVED Turret.

@in rlgthulf refresh tu iu tlgse ttters atrut ma milking mrt nf the same.

TO ALL WHOM ITMAY CONCERN:

Be it known that I, H. DEAN, of Clyde, in'the county of Sandusky, and State -of` Ohio, have invented certain new4 and useful improvements in Forge-Tuyeres; and I do hereby declare that the following is a full and complete description pf the construction of the same, reference being had tothe accompanying drawings, making a part of this specication, in whieh-n Figure l is a rearside view of the tuyere.

Figure 2 is a top view. l

Figure 3 is a vertical longitudinal section.

Like letters of reference refer to like parts in the views.

This tuyerc consists of a metallic oblong box, A, fig'. 1, provided with a broad projecting top, B, in which is sunka chamber, C, fig. 2, and through which is cut a rectangular oblong opening, D. To this openingr is fitted a pair of stops, E, each one of which is equal to one-half the. size of the opening, and by which it is closed, as shown'in fig. 2.l These stops are fixed to the inner ends of the levers F, pivoted to the outside of the box, betweenthe cheeks of the stays G, and by which they are operated for closing the opening, aswillhereafter be shown. H is a nozzle, through which the blast is inducted from the bellows or fan into the box.

The application of this tuyere-box is as follows: `It is bricked into the bottom of the forge, with the top or cover ush therewith, and the-nozzle projecting through the back. Upon this box is built the Ere, to the'bott'om of which the wind is admitted through Athe opening referred to, the amount of which being regulated by the stops E, which are operated from the outside by the projecting ends of the levers F. Thus. one-half of the full blast can be. admitted b`y `dropping one of the stops, or in full by dropping both, orin any degree, as the nature of the case may require.

'The usual method of supplying the fire with wind is from the back of the forge. In this way the tuyere is fully exposed to the heat, which soon causes it to burn out, and thereby necessitates the trouble 'and expense of replacing the back4 or'tuyere; also, it being supplied at. one side of the fire, the supply will not be equally given to the whole mass of burning coal; hence the fire, if large, will be 1nlrelrV stronger near the back than it will be distant from it, and therefore will require that the re should be frequently stirred up, so as to equalize the heat, and thereby cause a more uniform and quicker heating of the work. By the use of the box-tuyere above described the wind is inducted from below; hence it willbe more immediately and equally supplied to the burning mass, and as a consequence the fire will requireless stirring, and the work become heated4 in a much shorter time. This tuyere being below the fire, andat all times filled with cool air, is`not liable to become excessively heated, and burn out; hence it will last much longer, and be of greatly less trouble and expense. This box is provided with a. sliding bottom, so that when` the ashes or cinders shall have accumulated thereinbyfztl'lng through the opening, it can be drawn out, and the contents -thereby discharged below the forge into thc ash-pit.

WhatI claimas my improvement, and desire to secure by Letters PatentLis- The rectangular or oblong opening D,Vin combination with the stops E, levers F, and box A, arranged in relation to each othersubstantally as and for the purpose set forth.

HIRAM DEAN.

Witnesses:

J. ZEPENCH,

C. G. EATON- 

